package com.sky.service.impl;

import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.service.EmployeeService;
//import jdk.vm.ci.meta.Local;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对 
        // 对前端传过来的明文密码进行MD5加密 by1030
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工 1030
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        //employee.setName(employeeDTO.getName());不用一个个的set，而是对象的属性拷贝,只要属性名一致即可
        Employee employee =new Employee();
        //对象属性拷贝！！
        BeanUtils.copyProperties(employeeDTO,employee);//从源（前者）拷到目标（后者）

        //设置账号的状态，默认正常状态 1-正常 0-锁定
        //employee.setStatus(1);写1就成硬编码了，换成StatusConstant常量类易于维护
        employee.setStatus(StatusConstant.ENABLE);

        //设置密码，默认密码123456,先md5加密一下，再换成常量类password constant保存,com/sky/constant/PasswordConstant.java
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //设置当前记录的创建时间和修改时间
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        //设置当前记录创建人id和修改人id
        //TODO 后期需要改成当前登录用户的id
        employee.setCreateUser(10L);
        employee.setUpdateUser(10L);

        employeeMapper.insert(employee);




    }


}
